Improvement in slate-washers



Meseta-eem SAMUEL G. DUGDALE, 0F RICHMOND, INDIANA.

Letters Patent No. 101,987, dated April 19, 1870.

IMPROVEMENT IN SLATE-WASHERS.

`The Schedule referred to in these Letters Patent and making part of thesame To all whom it may concern:

Be it known that I, SAMUEL G. DUGDALE, of the city 0f Richmond, countyof Wayne, and State of Indiana, have invented a new and useful Apparatusfor Cleaning Slates and other plane surfaces; and I do hereby declarethat the lbllinving is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings niaking a part of this specification, in which- Figure1 is a side view.

Figureg, an end vew. with section cut off, showing contents;

A is a non-compressible case, of any suitable matcrial, size, 0r shape,with an opening, 0, lips c c, and handle d.

B is a sponge, for the purpose of holding or retaining water or otherfluids to be used.

Inclosed within the case A, in connection with the sponge B, isa pieceof material of finer fiber than the jsponge, as the cotton cloth i,passing between the lips rc c, and fastened by them, forming a rubber,f.

vIhe sponge B is filled with the fluid to be used by means of the holesn n, and is conducted to the rubber by the cloth fi. AThe rubber f beingdrawn over the slate the fluid is'supplied from the sponge byattract-ion in sufticent quantity to cleanse the same.

The nature of' my invention consists in having a sponge for the purposeof holding or retaining uitls, inclosed within a non-compressibie case,in :connection with a-material of liner ber than thesponge, leading to arubber for cleaning slates, thereby constituting a washer that onlydainpens the slate, as the sponge rctains thc fiuid until it is drawnfrom it by capillary attraction, by means of' the friction produced bythe rubber, consequently does not requireas lnuch time for drying ofi aswhen washed by other washers that leave a surplus of' water, and thenecessity' of wiping is in a measure avoided.

- I do not claim rigid water-reservoirs in connection with a rubber forthe purpose of washing slates, as these are well-known devices; but

Vhat I do claim as my invention, and desire to secure by Letters Patent,is-

The non-compi'essible case A, with holes n n, lips 'c c, sponge B,cotton cloth t', or its equivalent, and

rubber j, when arranged and used in the manner and for the purpose aboveset forth.

. I SAML. G. DUGDALE.

Witnesses:

WM, E. BELL, Jo nu CALvEnT.

